How to Play Hitori

THE PLAYBOOK · ZRZCH

Hitori: learn through an example

Hitori gives you a focused activity to play in your browser. Shade repeated numbers while keeping black cells separated and all white cells connected. Keep the game area visible while you use its controls. Compare the starting position with the example in the Guide. Keep the game area visible while you use its controls.

Play twelve 5×5 puzzles. Any shaded starting cells remain fixed.

Something to practise

Keep the stated aim separate from side details such as animation or appearance. Progress is measured by the game’s own completion or scoring rules. Refer to the controls when needed.

The challenge in front of you

Shade repeated numbers while keeping black cells separated and all white cells connected. Keep that objective in view throughout the round. Try to explain the aim in your own words.

Follow these playing steps

1. Click a cell to shade, mark or clear it.
2. No unshaded number may repeat in a row or column.
3. Black cells cannot share an edge.
4. Check puzzle verifies duplicates and connectivity.

Controls

Click or tap squares or graph edges. Number boards include a digit pad. Undo reverses the previous change; Check puzzle validates the solution. A careful first action helps you become familiar with the layout. Check any mode label before starting.

Learn from a sample situation

Two identical unshaded numbers in one row cannot both remain. Apply the same reasoning to the position in your own round. Keep the controls nearby.

One detail worth checking

Removing every duplicate can disconnect white cells. Read the feedback to see why an action did not have the expected result. Compare the worked example with your own position. Use the reasoning, not an answer copied from a different board.

Helpful answers for players